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saw5 [17]
3 years ago
5

The sum of two numbers is 138. One number is 20 less than the other. Find the numbers.

Mathematics
2 answers:
ad-work [718]3 years ago
7 0

Step-by-step explanation:

x + y = 138

x = y - 20

(y - 20) + y = 138

2y - 20 = 138

2y = 158

y = 79

Answer x = 79 - 20 = 59 = x

skad [1K]3 years ago
5 0

Answer:

Step-by-step explanation:This is two variables and two equations. x and y will be the two different numbers.

1.x + y =138

2.x= y-20

<em>plug #2 into #1. </em>

(y-20) + y = 138

2y - 20 = 138

2y = 158

y = 79 and plug into #2 and find x.

<h2><em>x = 79-20 = 59 = x</em></h2>

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